90174980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644107}}^1$

素因数の和:644123

約数の個数: 24

約数和(自身を含む): 216420288

約数和(自身を除く): 126245308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644107, 1288214, 2576428, 3220535, 4508749, 6441070, 9017498, 12882140, 18034996, 22543745, 45087490, 90174980]

約数ペア:

[(1, 90174980), (2, 45087490), (4, 22543745), (5, 18034996), (7, 12882140), (10, 9017498), (14, 6441070), (20, 4508749), (28, 3220535), (35, 2576428), (70, 1288214), (140, 644107)]